Court documents in the case of Todd Kohlhepp, the Upstate real estate agent turned accused serial killer, reveal new details of his alleged crimes, including that he is now charged with sexually assaulting Kala Brown and holding at least one woman captive before her.

Kohlhepp, 45, was indicted by a Spartanburg County grand jury last week, according to court documents. In all, he faces 14 charges, including seven counts of murder, multiple weapons charges and kidnapping. He remains in the Spartanburg County Detention Center.

The Spartanburg County Clerk of Court's Office made available 89 pages of documents, including arrest warrants, portions of deputies' supplemental incident reports and the indictments. Victims' names are redacted from the documents, but based on visible dates and information, the documents provide details about the about the captivity of Brown, the death of her boyfriend, Charles David Carver, and the disappearance and deaths of Johnny and Meagan Coxie, the Spartanburg husband and wife who went missing in December 2015. The documents also include information about Kohlhepp confessing last November to killing four employees at Superbike Motorsports in Chesnee in 2003.

Brown, 30, was found Nov. 3 chained in a metal container on property near Woodruff owned by Kohlhepp. Brown had been missing from Anderson for more than two months along with Carver, whose remains were found on the property.

According to a deputy's supplemental report from the Spartanburg County Sheriff's Office, Brown "was able to tell investigators that she witnessed Kohlhepp shoot her boyfriend ... in the chest three times."

"She also told investigators that she had been sexually assaulted by Kohlhepp as well," the report says.

Brown appeared on "Dr. Phil" in episodes that aired in February. She told show host Phil McGraw that while she was held captive, Kohlhepp raped her repeatedly.

In a separate incident report, a deputy wrote that Kohlhepp confessed to shooting Brown's boyfriend and "admitted that he had sex with her on multiple occasions." He is charged with sexual battery by the use of aggravated force, according to indictments.

Documents also reveal that the Coxies were taken to Kohlhepp's 95-acre property in Woodruff in December 19, 2015, allegedly for work. Brown has said she, too, went there last year for what she believed was work.

According to court documents, Kohlhepp told investigators that he brought the Coxies to his property with the intention of allowing them to clean houses he had for sale. Kohlhepp claimed to investigators that Johnny Coxie attempted to rob him on the property. Kohlhepp told investigators that he shot the man twice in the chest, then tackled his wife and put her in handcuffs and leg irons. He then returned to Johnny Coxie and shot him in the back, according to an incident report from the Sheriff's Office.

According to documents, Meagan Coxie was held captive in a shipping container on Kohlhepp's property for approximately six days. He told a deputy that he took her out around Christmas Day 2015 and shot in the back of the head while she walked in front of him.

"He claims to have done this because she upset him," a Spartanburg County deputy wrote.

The documents also say that Kohlhepp confessed to killing Scott Ponder, Beverly Guy, Brian Lucas and Chris Sherbert, who were fatally shot at Superbike Motorsports more than a decade ago.

A deputy's supplemental incident report says Kohlhepp "gave details specific that only the killer would know."

Included in the documents is a motion filed Feb. 16 by lawyer Clay Allen of the 7th Judicial Circuit Public Defender's Office. Allen is representing Kohlhepp and writes in court documents that Kohlhepp does not wish to be questioned without an attorney present.

Anderson Police Chief Jim Stewart said this week that his agency has turned over to the Spartanburg County Sheriff's Office sets of cellphone records gathered while city police investigated the disappearance of Brown and Carver. Stewart referred questions about any ongoing investigation to the Sheriff's Office. Lt. Kevin Bobo, a spokesman for the Sheriff's Office, said Wednesday that his agency is still investigating Kohlhepp, but he would not discuss any specifics about the probe.